561922930693 has 2 divisors, whose sum is σ = 561922930694. Its totient is φ = 561922930692.

The previous prime is 561922930669. The next prime is 561922930721. The reversal of 561922930693 is 396039229165.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 484573308769 + 77349621924 = 696113^2 + 278118^2 .

It is a cyclic number.

It is not a de Polignac number, because 561922930693 - 2¹³ = 561922922501 is a prime.

It is a super-2 number, since 2×561922930693² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (561922930643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280961465346 + 280961465347.

It is an arithmetic number, because the mean of its divisors is an integer number (280961465347).

Almost surely, 2^561922930693 is an apocalyptic number.

It is an amenable number.

561922930693 is a deficient number, since it is larger than the sum of its proper divisors (1).

561922930693 is an equidigital number, since it uses as much as digits as its factorization.

561922930693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4723920, while the sum is 55.

The spelling of 561922930693 in words is "five hundred sixty-one billion, nine hundred twenty-two million, nine hundred thirty thousand, six hundred ninety-three".